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View Full Version : Diagnostic code p1456 on 2002 honda odyssey


enelson6
Mar 4, 2010, 07:10 PM
I have rec'd a diagnostic code of p1456.. can anyone tell me what that stands for?

TxGreaseMonkey
Mar 4, 2010, 07:12 PM
P1456--EVAP Emission Control System Leak Detected (Fuel Tank System)

Make sure your gas cap is on all the way--tighten it three clicks. If you tighten the cap, the Check Engine Light should go out on its own within 20 miles or so. Otherwise, use a code reader to clear the code.

skidoo9
Mar 5, 2010, 03:13 PM
Sometimes rust or dirt can build up around the area where your gas cap seals to the gas neck or on the cap itself. Make sure you have a good clean seal. If not you may have replace the gas cap.

blurrygurl
May 20, 2010, 01:16 PM
I've replaced the gas cap, because last time I went to AutoZone, with a different code, they said it was the evap/gas cap and I bought a new one and it went off... NOW... it's this P1456 and AZone said it's NOT the evap, but Honda will try to charge me $800/$900 to fix what they WON'T tell me is broken! Can someone tell me what the real P1456 is? Please??